Burying a pipeline by pulling a plough through the ground while a continuous length of pipe is fed into the top of the plough and laid out underground from the tail of the plough. An alternate ploughing technique may use a plough blade with a bullet at the end to create a tunnel beneath the surface into which a pipe may be pulled.
The ratio of the weight average molecular weight to the number average molecular weight. This gives a preliminary indication of the range of molecular weights.
A minimum excavation procedure for the construction of pipelines. In collection system re-engineering, moling is typically used as a form of on line replacement, breaking aside the existing sewer fabric and pulling through a new structural lining.
Function of some property of a body or figure – such as weight, mass, volume, area, length, or position, equal to the summation of the products of the elementary portions by the squares of their distances from a given axis.
The moment which produces bending in a beam or other structure. It is measured by the algebraic sum of the products of all the forces multiplied by their respective lever arms.